1、MIL-T-54bC bb I 797970b 0125041 I / a.? .- dmN.$-“is material contains information affecting the national defense of the United States within the meaning of the Espionage Laws, Title 18, U. S. C. , Section 793 and 794, the trans- mission or revelation of which in any manner to an unauthorized person
2、 is prohibited by law. SUPERSEDES MIL-T-54866 (AER) I MARGH 1953 MILITARY SPECIFICATION TEST SET, MAGNETIC DETECTOR AN/ASM-4 This specification has been approved by the Bureau of Aeronautics, Department of the Navy. 1. SCOPE AND CLASSIFICATION 1.1 Scope - The equipment specified herein shall be a po
3、rtable test set suitable for bench, preflight,andnflight testing of Detecting Set AN/ASQ-8. It shall be suitable for use in workshops and laboratories ashore and afloat, or in and around aircraft. Classification - The equipment covered by this specification shall be of one type and shall condist of
4、the following: - 1.2 - . -_ Unita - Max. Allow. Max. me Size (Inches) Allow. Appl. Designation W H L/D Wt.Lbs. Par, Test Set, Magnetic Cable Assembly, Special Cable Assembly, Special Detector TS-835/ASM-4 .lo-1/2 14 8-1/2 18 3.3.1 Purpose, Electrical CX-285O/U (8-01) 96 3.3. 2. 1%- Pur pose, Elec tr
5、 ica! CX- 28 5 l/U (8- O“) 96 3.3.2.2 2. APPLICABLE DOCUMENTS 2. 1 General - The following specifications and drawings of the issue in effect on the date of invitation for bids shall form a part of this specification to the extent specified herein. SPECIFICATIONS Military MIL- T- 152 Treatment, Mois
6、ture and Fungus Resistant, of Communications, Electronic, and Associated Electrical Equipment, General Process for MIL-(2-172 Cases; Bases, Mounting; and Mounts, Vibration (For Use with Electronic Equipment in Aircraft) a h 1 ! Provided by IHSNot for ResaleNo reproduction or networking permitted wit
7、hout license from IHS-,-,-I MIL-T-SYBhC lab M 77777Ob 01250q2 T I i I MIL- P- 17 555 MIL- T- 94 5 ML-C-3432 MIL- C - 50 15 MIL-1-6181 MIL-E-4682 MIL- T- 18303 MIL-N-18307 Preparation for Delivery of Electronic Equipment; Accessories, Auxiliary Equipment, and Associated Repair (Maintenance) Parts Tes
8、t Equipment, For Use with Electronic Equip- ments, General Specification Cable, Flexible, 300 and 600 Volts Connectors; Electrical, “AN“ Type Interference Limits and Tests; Aircraft Elec- trical and Electronic Equipment Electron Tubes (Choice and Application of) Test Procedures; Preproduction and In
9、spection For Aircraft Electronic Equipment; Format for Nomenclature and Nameplates for Airborne Electronic and Associated Equipment STANDARDS MIL-STD-129 Marking for Shipment and Storage 2.2 Availability of Documents: (1) When requesting specifications and publications refer to bot title and number.
10、 All requests should be made via the cognizant Inspector of Naval Material or Bureau of Aeronautics Representative. (2) Copies of this specification and applicable specifications and publications may be obtained upon application to the Commanding Officer, Naval Aviation Supply Depot, Philadelphia 11
11、, Pennsylvania. Attention: Code ODPT. . 2.3 Precedence - When the requirements of the contract, this specification, or applicable subsidiary specifications are in conflict, the following precedence shall apply: (1) Contract - The contract shall have precedence over any specification. (2) This Specif
12、ication - This specification shall have precedence over all applicable subsidiary specifications. Any deviation from this speci- fication, or from subsidiary specifications where applicable, shall be specifically approved in writing by the procuring agency. (3) Referenced Specifications - Any refere
13、nced specification shall have precedence over all applicable subsidiary specifications referenced therein. Ail referenced specifications shall apply to the extent specified. 3. REQUIREMENTS 3.1 Parts and Materials - In the selection of parts and materials, fulfillment of majar deem objectives shall
14、be th e prime consideration. In so doing the following shall govern. (1) Parts and materiale a8 approved by epecification MIL-E-5400 shall be given firet consideration. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- T- 5486C (Aer) When the co
15、ntractors can demonstrate that the use of standard AN or JAN parts or materials will not fulfill the design objectives because of size, weight, performance or other reasons, materials and parts shall be used which most nearly meet or exceed the re- quirements of the respective standard specification
16、. The use of unpotted transformers protected by flexsial, fosterite, permafil or equivalent process will be acceptable. Unpotted transformers must be approved as specified in paragraph 3.1.1 When a non-standard part is used, the meeting of general material requirements such as non-inflammability, fu
17、ngus resistance, non- toxicity, etc., and, the meeting of environmental conditions as required by specification MIL-T-945 shall be of prime consideration. In the selection of parts, the above considerations shall apply if the assembly is to be built for detail part maintenance. In the event the enti
18、re assembly is built to be expended, the assembly shall be con- structed and the quality of the individual parts shall be such that the unit as a whole will pass material, electrical and environmental tests. Any assembly built to be expended shall be approved first by the procuring agency. 3.1.1 Non
19、-Standard Part Approval and Material Approval - Approval for the use of non-standard parts and materials shall be obtained as outlined in specification MIL-E-5400 except as follows: (1) Mechanical parts are expected to meet the material requirements of MIL-E-5400, and shall be submitted as non-stand
20、ard parts only when the material requirements are not met. (2) Non-standard parts, as defined in specification MIL-E-5400 of an electrical nature must be approved before the preproduction model of the equipment is delivered to the Bureau of Aeronautics. The request for approval must be forwarded by
21、the contractor be- fore the part is purchased or fabricated. In addition to or in lieu of the NON-Standard Part Data Sheet the contractor is requested to submit itemized lists of the parts, their sources, and the con- ractors drawing or purchase specification covering the parts. 3.1.2 Choice of Tube
22、 Types - Electronic tubes used in the equipment shall be . chosen in accordance with the following requirements and in the sequence noted: (1) MIL-E-4682 (2) “he use of any tube not meeting the requirements of (1) above must be approved by the Bureau of Aeronautics, however, before consideration for
23、 approval, the contractor must submit the following information: (a) Quantitative data on the electrical advantages and mechanical adequacy of the proposed tube over the most nearly equivalent type on the acceptable listings. (b) Test data and performance limits of the tube which must be maintained
24、to insure satisfaetory and reliable performance in the equipment. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-5YbC 66 7793706 OL25Oq4 3 ML- T- 5486C (Aer) (c) information as to whether fhe tube manufacturer has received , Military or Navy q
25、ualification approval for the particular tube. 3.2 General Requirements 3.2.1 General - he equipment shall fulfill all applicable design and performance requirem8nb of specdicamL-T-945 unless otherwise specified herein. Service Conditions - The performance specified herein shall be obtained under an
26、y condition of service conditions as specified in specification MIL-T-945 except that the tolerance limits specified shall apply only to perfrmance during tests conducted with ambient temperatures between -20C and +40“C and shall be capable of being subjected to the complete environmental tests spec
27、ified in specification MIL-T-945 with no permanent damage or loss of accuracy. 3.2.2 3.2.3 Form Factor - The equipment shall be in the form of a rectangular solid. The overall dimensions of the equipment, including cover, handles, hinges,. etc. , shall not be greater than 8-1/2 inches deep, 10-1/2 i
28、nches wide, and 18 inches high. The total weight of the equipment, including accessories stowed within the lid of the combination case, shall not exceed 20 pounds. 3.2.4 Case - The equipment shall be furnished in a combination cae fulfilling the requirements of specification MIL-T-945. in addition t
29、o the requirements of specification MIL-T-945, the case shall be capable of being mounted on a base meeting the requirements of specification MIL-C-172. A 3 inch deep storage space shall be provided in the lid of the com- bination case for stowing accessories. Handles - The controls, indicators, con
30、nectors, etc. , mounted on the front panel shall be protemtwo guard-rail type handles mounted on either side of the panel. These handles shall be adequate for use in carrying the equipment and no other handles shall be provided for this purpose. DC and 300 volts DC furnished thr ough an interconnect
31、ing cable from Electronic Control Amplifier AM-294/ASQ-8 of Detecting Set AN/ASQ-8. A 1-1/2 volt battery holder to receive 1-1/2 volt BA 56 battery shall be provided and external connections for a 1-1/2 volt battery supply shall be provided. Overload Protection - Overload protection for the equipmen
32、t shall be provided in the equipment. Ail parts and circuits of the equipment which are likely to carry an overload dire, to any failure or poor adjustments shall have suitable protective devices or shall be of fuses and other protective devices shall be held to a minimum. 3.2.6.1 below the minimum
33、specified and shall automatically resume normal operation when the voltage returns within limits. . 3.2.4.1 3.2.5 Operating Power - The equipment shall be designed to operate from 28 volts 3.2.6 . proportioned to wifhsfand such overload without permanent damage to the equipment. The use Uitdervoltag
34、e Protection - The equipment shall not be damaged by voltages 3.2.7 Operational Stability 8.2.7. i Electrical Stability - This equipment shall maintain the accuracies and 0th requirements speci3ied herein for at hast 1000 hours without requiring recalibration or readjustment of controls or adjustmen
35、ts other than those accessible through or located on the catloa MIL-N-18307. _- Location - All operational controls, connectors, adjustments and indicators 3.2.10.2 Approval - Prior to fabrication of the first equipment, the coniractor 3.2.11 Interference - nie generation of radio interference by th
36、e equipment 3.2.12 3.2.13 Interchangeability - The interchangeability requirements between like 9.2.14 , r. 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T- 5486C(Aer) 3.2. 15 Marking and Identification - Marking and identification shall be i
37、n accord- ance with the requirements of specification MIL-T-945 and in addition all replaceable subassemblies shall be further identified with the following information, rubber stamped on a fixed surface when available or on a protected tag affixed in such a manner as not to impair operation of the
38、assembly or be easily torn off. (1) Reference symbol (2) Name if applicable (3) P/O Test Set TS-835/ASM-4* (4) Additional information such as ASO stock number, contractor drawing number, etc. , when space permits. 3. 2.16 Workmanship - The equipment covered by this specification, including all parta
39、 and accessories shall be mandactured and finished in accordance with the stand-ds set up in specification MIL-T-945. 3.3 Detail Reauirements 3.3.1 Test Set, Magnetic Detector TS-835/ASM-4 - The Test Set, Magnetic Detector “S-835/ASM-4 shall meet the following requirements: 3.3. 1.1 Functions - The
40、test set specified herein shall furnish test signals to, and measure signals from Detecting Set AN/ASQ-8 for the purpose of (a) adjusting and (b) measuring the performance of the servo and orient systems of the AN/ASQ-8, Detecting Set. Application - For adjusting the AN/ASQ-8 the equipment shall fur
41、nish a sinusoidal low frequency signal successively to the inner and outer axis orienter magnetometers of the Detecting Head DT-37/AQ-8 and thereafter indicate successively the values of the servo error signal from each axis servo system. This then permits adjustment of the servo gain control to a d
42、esired value. Similarly the equipment shall simultaneously furnish two sinusoidal low fre- queney signals, in quadrature phase, to the inner and outer axis magnetometers of the DT-37/ASQ-8 and thereafter indicate the amplitude of signals from the AM-295/ASQ-8 detector circuits. This then permits adj
43、ustment of the inner and outer orientation controls to a desired value. For measur- ing the performance of the AN/ASQ-8 the equipment shall furnish measured and adjustable sinusoidal low frequency calibration signals successively to the inner and outer axis orienter magnetometers and thereafter accu
44、rately measure signals from the servo and orientation circuits to allow a deter- mination of the quantitative performance of the AN/ASQ-8. 3.3.1.2 3.3. A. 3 Contents - The equipment shall include the following functional groups of circuits: 3.3.1.3.1 Signal Generator - The signal generator shall fur
45、nish Ginusoidal test signais for use in adjushg and measuring the performance of the servo and orientation circuits of the AN/ASQ-8. The signal generator shall furnish signals in accordance with the following requirements : (i) Output Impedance - The output resistor shall be 100,000 ohms f 10% unles
46、s another value is approved by the Bureau of Aero- nautics. (2) Test Signala - For servo adjustment and measurement, a single servo test signal ehal be furnished which can by suitable switching be applied to either the inner or outer. axis magneto- metere of the AN/ASQ-8. For orientation adjustment
47、and measurement, dual orient test signals having quadrature phase relation shall be furnished simultaneously to the inner and outer axis magrietometers of the AN/ASQ-8. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-54bC 66 W 9999906 OL25OY7 3
48、 M MIL-T- 5486C(Aer) (3) Frequency - The frequency of both servo and orient test signals shall be one cycle per second * 10% throughout the service con- ditions specified in paragraph 3.2.2. The harmonics shall be minimized and shall be limited sufficiently to allow use in ad- justing the AN/ASQ-8.
49、(4) Orient Test Signal Level - The dual orient test signai levels from a source with an impedance of loo, O00 ohms or more shall be approximately 100 microamperes into a load impedance of approximately 50 ohms with less than O. 1 microampere d-c leakage. (5) Servo Test Signal Level - The servo test signal level from a source with an impedance of 100,000 ohms or more shall be adjustable from O to 400 microamperes into a load impedance of 50 ohms with less than 10 m
